Smart table and method for operating the same

ABSTRACT

A smart table is disclosed. The smart table includes a plate, an inverter configured to convert direct current (DC) power into alternative current (AC) power and to supply the AC power, a coil unit disposed below the plate and including a plurality of working coils heated by the AC power, a radio frequency identification (RFID) reader configured to recognize an RFID tag of a home appliance placed on the plate and to receive information on the home appliance from the RFID tag, and a processor configured to drive one or more of the plurality of working coils as wireless power transmission coils to perform control to transmit wireless power to the home appliance based on the received information.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a continuation of U.S. application Ser. No.15/470,100, filed on Mar. 27, 2017, which claims benefit of KoreanPatent Application No. 10-2016-0036668, filed on Mar. 28, 2016 in theKorean Intellectual Property Office, the disclosure of which isincorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a multipurpose table, and moreparticularly to a smart table with an induction heating cooking functionand a wireless power transmission function.

2. Description of the Related Art

In general, a table for supporting objects or foods at home, in arestaurant, or in an office has been used.

Recently, a multipurpose table including various devices or modules inaddition to simply supporting objects has been conceived.

For example, a table including cooking equipment may enhance spaceutilization and user convenience of a kitchen.

Various products of cooking equipment such as a microwave range usingmicrowaves, an oven using a heater, and a cooktop have been widelypopular.

In general, the cooktop heats a cooking container placed on an uppersurface thereof to heat food in the cooking container and arepresentative example of the cooktop is a gas cooktop using gas as aheat source. The gas cooktop has degraded thermal efficiency accordingto high heat loss due to flame radiation and, thus, recently, interestin a cooktop using electricity has increased.

In addition, research into a table including a table with an inductionheating module installed therein, for heating a metallic cookingcontainer using electricity via an induction heating method, has beenconducted.

However, a table is used for a multipurpose and is positioned in variouslocations at home and, thus, although an induction heating moduleinstalled in the table needs to be selectively positioned at variouslocations, there are problems in that a conventional table is configuredin such a way that a location of an induction heating module is fixedand is not capable of being easily changed.

Research into a method for conveniently using various electronic devicesthat are placed and used on a table has been increasingly conducted.

SUMMARY OF THE INVENTION

Therefore, the present invention has been made in view of the aboveproblems, and it is an object of the present invention to provide asmart table with an induction heating cooking function and a wirelesspower transmission function and a method for operating for the same.

It is another object of the present invention to provide a smart tablefor determining the information and location of a home appliance and foreffectively supplying wireless power and a method for operating for thesame.

It is another object of the present invention to provide a smart tablefor supplying wireless power even if a home appliance is moved and amethod for operating for the same.

It is another object of the present invention to provide a smart tablewith a compact structure.

It is another object of the present invention to provide a smart table,for embodying an induction heating cooking function and a wireless powertransmission function at low cost and minimizing power consumption and amethod for operating for the same.

In accordance with an aspect of the present invention, the above andother objects can be accomplished by the provision of a smart tableincluding a plate, an inverter configured to convert direct current (DC)power into alternative current (AC) power and to supply the AC power, acoil unit disposed below the plate and including a plurality of workingcoils heated by the AC power, a radio frequency identification (RFID)reader configured to recognize an RFID tag of a home appliance placed onthe plate and to receive information on the home appliance from the RFIDtag, and a processor configured to drive one or more of the plurality ofworking coils as wireless power transmission coils to perform control totransmit wireless power to the home appliance based on the receivedinformation.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and other objects, features and other advantages of thepresent invention will be more clearly understood from the followingdetailed description taken in conjunction with the accompanyingdrawings, in which:

FIG. 1 is a schematic diagram of a smart table according to an exemplaryembodiment of the present invention;

FIG. 2 is a diagram illustrating an external appearance of a smart tableaccording to an exemplary embodiment of the present invention;

FIG. 3 is a diagram illustrating a plate and a wireless powertransmission region of a smart table according to an exemplaryembodiment of the present invention;

FIG. 4 is a diagram illustrating a bottom surface of a home applianceaccording to an exemplary embodiment of the present invention;

FIGS. 5 and 6 are diagrams for explanation of a coil unit according toan exemplary embodiment of the present invention;

FIGS. 7 to 10 are diagrams of examples of arrangement of a working coiland an RFID reader antenna of a smart table according to an exemplaryembodiment of the present invention;

FIG. 11 is a block diagram of a smart table according to an exemplaryembodiment of the present invention;

FIG. 12 is a flowchart of an operating method of a smart table accordingto an exemplary embodiment of the present invention;

FIG. 13 is a flowchart of an operating method of a smart table accordingto an exemplary embodiment of the present invention; and

FIGS. 14 to 16 are diagrams for explanation of an operating method of asmart table according to an exemplary embodiment of the presentinvention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Exemplary embodiments of the present invention will be described withreference to the attached drawings. The invention may, however, beembodied in many different forms and should not be construed as beinglimited to the embodiments set forth herein.

In the drawings, for convenience and clarity of illustration, portionsunrelated to description are omitted and, throughout this specification,the same reference numerals indicate the same or similar elements.

In addition, the suffixes “module” and “unit” of elements herein areused for convenience of description and do not have any distinguishablemeanings or functions. Accordingly, “module” and “unit” can be usedinterchangeably.

FIG. 1 is a schematic diagram of a smart table 20 according to anexemplary embodiment of the present invention.

The smart table 20 according to an exemplary embodiment of the presentinvention may have a wireless power transmission function and aninduction heating function.

As illustrated in FIG. 1, the smart table 20 may induction-heat acooking container placed on a plate to cook food.

While the cooking container is placed on a working coil of the smarttable 20, when alternative current (AC), in particular, high-frequencyAC flows in the working coil, a magnetic field is generated in theworking coil. According to an electromagnetic induction effect due to amagnetic field, eddy current may be induced in the cooking container.Due to the eddy current, the Joule heat may be generated from aresistance component of the cooking container to heat the cookingcontainer.

The smart table 20 according to an exemplary embodiment of the presentinvention may supply wireless power to a wireless home appliance that iscapable of wirelessly receiving power.

The smart table 20 according to an exemplary embodiment of the presentinvention and wireless home appliances may transmit/receive wirelesspower via a well-known wireless power transmission system, for example,via an electromagnetic induction and a magnetic resonance method.

The electromagnetic induction method uses an electromagnetic inductionphenomenon in which a voltage is induced to allow current to flow when amagnetic field is changed around a conductor in which electricity flows.

The magnetic resonance method is a method in which power is transmittedaccording to wireless power transmission for moving electromagneticwaves to a receiver from a transmitter through an electromagnetic fieldwhen the transmitter and the receiver resonate at the same frequency. Atransmission coil of the transmitter may have a predetermined resonancefrequency and receive energy from a power source to generate anelectromagnetic wave and, accordingly, a magnetic field may be formed.In this case, inductive power may be generated in a reception coil ofthe receiver according to the magnetic field.

The smart table 20 may include a wireless power transmission module 200including a wireless power transmission (Tx) coil 210 and an inverter220 for supplying power to the wireless power Tx coil 210, which arepositioned inside or below a plate.

The wireless home appliance according to an exemplary embodiment of thepresent invention may include a wireless power receiver so as to receivewireless power from the wireless power Tx coil 210 through the wirelesspower reception coil of the wireless power receiver.

In some embodiments, the wireless power transmission module 200 mayperform an induction heating function of induction heating cookingequipment during a cooking operation. In this case, the wireless powerTx coil 210 may operate as a working coil that generates a magneticfield that induction-heats an adjacent object.

The smart table 20 according to an exemplary embodiment of the presentinvention may wirelessly communicate with a home appliance such ascooking equipment and may be operatively associated with other devices.

FIG. 2 is a diagram illustrating an external appearance of a smart tableaccording to an exemplary embodiment of the present invention andillustrates a main body portion except for a leg portion of the table.

FIG. 3 is a diagram illustrating a plate and a wireless powertransmission region of a smart table according to an exemplaryembodiment of the present invention.

Referring to FIGS. 2 and 3, the smart table 20 according to an exemplaryembodiment of the present invention may include the wireless powertransmission module 200 including a wireless power transmission coil andan inverter for supplying power to the wireless power transmission coil,which are positioned inside or below a plate.

The wireless power transmission module 200 may perform an inductionheating function of induction heating cooking equipment during a cookingoperation.

In some embodiments, the wireless power transmission module 200 may bedivided into a heating region 101 for performing the induction heatingcooking function and a wireless power transmission region 102 fortransmitting wireless power.

The heating region 101 and the wireless power transmission region 102may be printed and displayed on the plate of the smart table 20according to an exemplary embodiment of the present invention.

Transmissive/semi-transmissive regions may be formed in at least aportion of the plate of the smart table 20 and light emitted from aninternal light source may be emitted upward to thetransmissive/semi-transmissive regions. Each region may be displayedusing the light emitted upward.

A partial region 103 of the plate of the smart table 20 may displaystate or operation information such as a current temperature and acurrent operation situation.

A manipulator 110 for receiving a user command may be disposed on theplate of the smart table 20. In some embodiments, the manipulator 110may be divided into a heating region manipulator 111 and a wirelesspower transmission region manipulator 112.

Referring to FIGS. 2 and 3, a cooking container may be placed on theheating region 101 and a food may be cooked via induction heating.

When a wireless home appliance 30 that is capable of receiving wirelesspower is placed in the wireless power transmission region 102, the smarttable 20 may transmit wireless power to the wireless home appliance 30.

A plurality of coils 1 to 4 may be disposed in the wireless powertransmission region 102 and at least some coils corresponding to thesize of the wireless home appliance 30 may be driven to transmitwireless power.

When the heating region 101 that performs an induction heating cookingfunction and the wireless power transmission region 102 that transmitswireless power are separated, it is difficult to use the respectiveunique regions for different purposes.

A user suffers the inconvenience of accurately using a specific spaceaccording to an executed function.

Accordingly, in terms of space utilization and user convenience, theinduction heating cooking function and the wireless power transmissionfunction may be used without separation of unique regions.

Accordingly, an exemplary embodiment of the present invention proposes asmart table using the induction heating cooking function and thewireless power transmission function without separation of regions.

FIG. 4 is a diagram illustrating a bottom surface of a home applianceaccording to an exemplary embodiment of the present invention.

A wireless home appliance used together with a smart table according toan exemplary embodiment of the present invention may include a radiofrequency identification (RFID) tag.

Referring to FIG. 4, the wireless home appliance may include a receptioncoil 31 and an RFID tag 32, which are disposed on the bottom surface andare used to receive wireless power. The RFID tag 32 may use a frequencyof 10 MHz or more and may be formed of a material other than copper(Cu).

RFID is a technology for identifying an object using a radio frequencyand is used as a method in which an RF tag including an antenna and achip stores information and is attached to a target and, then, theinformation is recognized through an RFID reader.

The RFID tag may communicate with the RFID reader to wirelessly transmitdata to the RFID reader. The RFID tag may be divided into an active typetag and a passive type tag according to whether a battery is installedin the tag.

The RFID reader may receive a signal containing unique informationtransmitted from the RFID tag 32 and recognize the RFID tag 32.

A smart table according to an exemplary embodiment of the presentinvention may include an RFID reader that may recognize and the RFID tag32 and receive data.

The RFID tag 32 may include information such as a device type andrequired power quantity of the wireless home appliance.

The smart table may be used to transmit wireless power using theinformation of the recognized RFID tag 32.

FIGS. 5 and 6 are diagrams for explanation of a coil unit 500 accordingto an exemplary embodiment of the present invention.

The smart table according to an exemplary embodiment of the presentinvention may include the coil unit 500 that is disposed below an uppersurface of a plate and is heated by AC power. Here, a plurality ofworking coils may be positioned in a predetermined region withoutseparation of purposes of induction heating and wireless powertransmission.

Referring to FIG. 5, the coil unit 500 according to an exemplaryembodiment of the present invention may include a plurality of workingcoils 501, 502, 503, . . . .

The smart table according to an exemplary embodiment of the presentinvention may drive some of the plurality of working coils 501, 502,503, . . . of the coil unit 500 as working coils for induction heatingor as transmission coils for wireless power transmission, as necessary.

Although FIG. 5 illustrates an example in which oval working coils 501,502, 503, . . . are spaced apart from each other by a uniform interval,the present invention is not limited thereto. For example, the workingcoils may each be circular and an interval between some working coilsmay be different from an interval between other working coils.

FIG. 6 is a diagram illustrating an example of a coil unit 600 includinga plurality of circular working coils 601, 602, 603, . . . .

Alternatively, the coil unit may be configured by combining circularworking coils and oval working coils.

FIGS. 7 to 10 are diagrams of examples of arrangement of a working coil710 and an RFID reader antenna 720 of a smart table according to anexemplary embodiment of the present invention.

Referring to FIG. 7, the RFID reader antenna 720 may be disposed abovethe working coil 710. In some embodiments, one RFID reader antenna 720may be disposed to correspond to one working coil 710.

In this case, the RFID reader antenna 720 may determine whether an RFIDtag is present above the corresponding working coil 710. Accordingly,according to an exemplary embodiment of the present invention, whether awireless home appliance is present in a certain working coil may bedetermined according to whether the RFID tag is recognized.

In addition, the number of RFID reader antennas may be less than thenumber of working coils. In this case, one RFID reader antenna maycorrespond to a predetermined number of working coils and a distancefrom the RFID tag may be calculated using signal intensity or the like.

Referring to FIGS. 8 and 9, a spacer 730 or a heat insulator 740 may bedisposed between the working coil 710 and the RFID reader antenna 720according to an exemplary embodiment of the present invention.

The spacer 730 and the heat insulator 740 may be added for heatinsulation from heat of the working coil 710 and to ensure a gap.

Referring to FIG. 10, an RFID reader antenna 1020 may be disposedbetween working coils 1010. In more detail, the RFID reader antenna 1020may be disposed between coils that are configured as concentric circlesin the working coils 1010.

FIG. 11 is a block diagram of a smart table 1100 according to anexemplary embodiment of the present invention.

Referring to FIG. 11, the smart table 1100 according to an exemplaryembodiment of the present invention may include a plate 1110 on which awireless home appliance is placed and a wireless powertransmission/induction heating module 1120 disposed in or below theplate 1110.

The wireless power transmission/induction heating module 1120 mayinclude an inverter 1122 for converting direct current (DC) power intoAC power and supplying power, a coil unit 1123 disposed below an uppersurface of the plate 1110 and including a plurality of working coilsheated by the AC power, an RFID reader 1125 for recognizing an RFID tagof a home appliance placed on the plate 1110 and receiving informationof the home appliance from the RFID tag, and a processor 1121 fordriving one or more of the plurality of working coils as wireless powertransmission coils to perform control to transmit wireless power to thehome appliance based on the received information.

That is, when the RFID reader 1125 recognizes an RFID tag, the processor1121 may select some of a plurality of working coils of the coil unit1123 and drive the selected coils as wireless power transmission coils.

The smart table according to an exemplary embodiment of the presentinvention may drive some of the plurality of working coils of the coilunit as working coils for induction heating or as transmission coils forwireless power transmission, as necessary.

The processor 1121 may identify a location of the recognized RFID tagand perform control to transmit wireless power to the home appliancethrough a working coil corresponding to the identified location.

Upon recognizing the RFID tag, the processor 1121 may perform control tomake at least some of the plurality of working coils enter a wirelesspower transmission mode.

The received information may include information on a type and requiredpower quantity of the home appliance. The processor 1121 may drive theinverter 1122 according to the information on the type and requiredpower quantity of the home appliance.

In the case of a conventional wireless power transmission system of awireless home appliance, in order to drive the wireless home appliance,first, a wireless power transmitter may transmit power and supply powerto the wireless home appliance to activate a communication module.

The activated communication module may transmit information items of thewireless home appliance to the wireless power transmitter, check eachother's information and, then, operate the wireless home applianceaccording to user requirements.

As described above, conventionally, a communication module fortransmission and reception needs to be included in the wireless powertransceiver.

When a module includes a plurality of wireless power transmitters, it isvery difficult to check a transmitter of the plurality of transmitters,to which the wireless home appliance is coupled, during communicationbetween the wireless home appliance and the wireless power transmitter.

In other words, when one wireless power transmitter uses a plurality ofwireless home appliances, a type of a wireless home appliance placed on(coupled to) the transmitter and the number of wireless home appliancesare obviously known but, in the case of a module including a pluralityof wireless power transmitters, it is difficult to recognize a locationof the wireless home appliance only via communication.

In addition, when a wireless home appliance has no unique power sourceand receives power through the wireless power receiver, if the wirelesshome appliance is not coupled to the wireless power receiver, thewireless power receiver needs to continuously transmit minimum power inorder to continuously transmit minimum power of a wireless homeappliance and, here, when the wireless home appliance is recognized isunknown.

When the wireless home appliance is coupled to the wireless powertransmission coil, power may be wirelessly supplied and a communicationmodule of the wireless home appliance may be activated and, then, thecommunication module may be in a state in which the communication moduleis capable of being used by a user.

The smart table according to an exemplary embodiment of the presentinvention may receive information including at least one of informationcorresponding to wireless home appliances, for example, a device type,required output, and a functional component (power ON/OFF, outputadjustment, etc.) from an RFID tag.

When the RFID reader 1125 recognizes an RFID tag, the RFID reader 1125may transmit corresponding wireless home appliance information to theprocessor 1121.

The processor 1121 may recognize a corresponding location as well aswireless home appliance information through RFID. When one or morewireless power transmission coils are present, a coil on which awireless home appliance is positioned may be primarily determinedthrough RFID and may be secondarily determined through a wireless powertransmission coil.

According to the present invention, wireless power may be transmittedusing a working coil of a device that does not include a separatetransmission coil and has an induction heating cooking function using amagnetic induction phenomenon.

Accordingly, a separate additional module is not required and, thus, amultipurpose smart table may have a compact structure.

According to the present invention, RFID may be used for communicationbetween a smart table and a wireless home appliance.

The RFID reader 1125 may recognize a coil to which a wireless homeappliance of one or more wireless power transmission coils is coupled aswell as receive information through RFID.

That is, the smart table may identify a location of a wireless powertransmission coil corresponding to a wireless home appliance that is awireless power receiver and drive only the corresponding wireless powertransmission coil to supply wireless power without waste of power. Inaddition, radiated noise of electromagnetic waves may be minimized.

The processor 1121 may process information on the wireless homeappliance and so on, provide the information to a user, and checkoperations.

According to an exemplary embodiment of the present invention, thewireless home appliance may include only an RFID tag and, thus, does notrequire additional communication modules, there achieving compact designof the wireless home appliance.

The RFID reader 1125 may include a plurality of antennas that may haveone to one correspondence to the plurality of working coils.

As described with reference to FIGS. 7 to 9, the antenna of the RFIDreader 1125 may be disposed on the working coil.

In this case, a spacer or a heat insulator may be disposed between theworking coil and the antenna of the RFID reader 1125 for heat insulationfrom heat of the working coil and ensuring a gap.

The antenna of the RFID reader 1125 may be disposed between workingcoils that are configured as concentric circles in the working coils.That is, as illustrated in FIG. 10, an insert-type antenna form may bedisposed in a gap between coils configured as concentric circles.

The RFID reader 1125 may poll at a predetermined period in order torecognize an RFID tag.

The smart table 1100 according to an exemplary embodiment of the presentinvention may further include a display 1124.

In this case, when at least one of the plurality of working coilsoperates as an induction heating coil, the processor 1121 may controlthe display 1124 to display an image indicating that cooking iscurrently underway.

Upon detecting movement of the home appliance, the processor 1121 maycontrol the display 1124 to display a message indicating movement of thehome appliance.

The display 1124 may be embodied as a touchscreen and may function as aninput unit.

Upon detecting movement of the home appliance, the processor 1121 maychange a working coil operating as the wireless power transmission coilaccording to the movement of the home appliance.

That is, when a home appliance is moved on the smart table, a workingcoil corresponding to a location to which the home appliance is movedmay be set and driven as a wireless power transmission coil. In thiscase, a working coil that is not related to the location of the homeappliance any longer among previously driven working coils may be turnedoff.

Upon detecting decoupling of the home appliance, the processor 1121 mayturn power supply of the working coil operating as the wireless powertransmission coil off.

FIG. 12 is a flowchart of an operating method of a smart table accordingto an exemplary embodiment of the present invention.

Referring to FIG. 12, an RFID reader may poll at a predetermined period(S1210) and, then, recognize an RFID tag of a home appliance placed on aplate (S1220).

The RFID reader may receive information of the home appliance from theRFID tag (S1230).

Here, the received information may include information on a type andrequired power quantity of the home appliance. In some embodiments, thereceived information may include information on a functional componentof required output, power on/off, output adjustment, and so on as wellas device type information.

The smart table according to an exemplary embodiment of the presentinvention may drive some of the plurality of working coils of the coilunit as working coils for induction heating or as transmission coils forwireless power transmission, as necessary.

The processor may drive one or more of the plurality of working coils asa wireless power transmission coil to transmit wireless power to thehome appliance based on the received information (S1250).

The processor may identify a location of the recognized RFID tag basedon an RFID antenna location in which the RFID tag is recognized andsignal intensity from the RFID tag (S1240).

The processor may set and drive a working coil corresponding to theidentified location of the RFID tag as the wireless power transmissioncoil.

That is, the working coil driven as the wireless power transmission coilmay be a working coil corresponding to the determined location.

FIG. 13 is a flowchart of an operating method of a smart table accordingto an exemplary embodiment of the present invention.

The processor may detect movement of the recognized RFID tag based onchange in an RFID antenna that recognizes the RFID tag and signalintensity from the RFID tag.

Referring to FIG. 13, upon detecting movement of a home appliance(S1310), the processor may control a display to display a messageindicating movement of the home appliance (S1320).

Upon detecting movement of a home appliance (S1310), the processor maychange a working coil driven as the wireless power transmission coilaccording to the movement of the home appliance (S1330).

In some embodiments, according to movement of a home appliance, theprocessor may omit message display and may automatically change workingcoils.

When a home appliance is not detected at any portion of a working coilfor transmitting wireless power, the processor may control the displayto display decoupling of the home appliance.

FIGS. 14 to 16 are diagrams for explanation of an operating method of asmart table according to an exemplary embodiment of the presentinvention.

The smart table according to an exemplary embodiment of the presentinvention may drive some of the plurality of working coils of the coilunit as working coils for induction heating or as transmission coils forwireless power transmission, as necessary.

Referring to FIG. 14, when an RFID tag of a wireless home appliance 1410is recognized on coil 1 and coil 2 of a coil unit 1400, the coil 1 andthe coil 2 may be driven as wireless power transmission coils.

Then, when the wireless home appliance is moved to the right, an RFIDtag recognition location of a wireless home appliance 1510 that is movedto the right may be changed, as illustrated in FIG. 15.

The processor may identify working coils coil 5 and coil 6 correspondingto the wireless home appliance 1510 that is moved to the right.

The processor may change the wireless power transmission coil to thecoil 5 and the coil 6. The processor may power off the coil 1 and thecoil 2.

In addition, as illustrated in FIG. 16, when the wireless home applianceis moved to a region 1610 in which no working coil is disposed, theprocessor may power off the coil 1 and the coil 2.

At least one of exemplary embodiments of the present invention mayprovide a smart table having an induction heating cooking function and awireless power transmission function.

According to at least one of exemplary embodiments of the presentinvention, the information and location of a home appliance may beidentified and wireless power may be effectively supplied.

According to at least one of exemplary embodiments of the presentinvention, wireless power may be supplied even if a home appliance ismoved.

According to at least one of exemplary embodiments of the presentinvention, a multipurpose smart table may advantageously have a compactstructure.

According to at least one of exemplary embodiments of the presentinvention, an induction heating cooking function and a wireless powertransmission function may be embodied at low cost and power consumptionmay be minimized.

Although the preferred embodiments of the present invention have beendisclosed for illustrative purposes, those skilled in the art willappreciate that various modifications, additions and substitutions arepossible, without departing from the scope and spirit of the inventionas disclosed in the accompanying claims.

What is claimed is:
 1. A smart table comprising: a plate; an inverterconfigured to convert direct current (DC) power into alternative current(AC) power and to supply the AC power; a coil unit disposed below theplate and comprising a plurality of working coils configured to beheated by the AC power; a radio frequency identification (RFID) readerconfigured to recognize an RFID tag of a home appliance placed on theplate and to receive information on the home appliance from the RFIDtag, the RFID reader comprising an antenna disposed adjacent to at leastone of the plurality of working coils; a spacer or an insulator that isdisposed between the antenna of the RFID reader and the at least one ofthe plurality of working coils; and a processor configured toselectively drive one or more of the plurality of working coils (i) aswireless power transmission coils to perform control to transmitwireless power to the home appliance based on the received informationor (ii) as working coils for induction heating to heat one or moreobjects disposed on the plate.
 2. The smart table according to claim 1,wherein the processor identifies a location of the recognized RFID tagand performs control to transmit wireless power to the home appliancethrough a working coil corresponding to the identified location.
 3. Thesmart table according to claim 1, wherein the received informationcomprises information on a type and required power quantity of the homeappliance.
 4. The smart table according to claim 1, wherein: the RFIDreader comprises a plurality of antennas; and the plurality of antennashave one to one correspondence to the plurality of working coils.
 5. Thesmart table according to claim 1, wherein the antenna of the RFID readeris disposed on at least one of the plurality of working coils.
 6. Thesmart table according to claim 1, wherein the antenna of the RFID readeris disposed between coils that are configured as concentric circles inthe at least one of the plurality of working coils.
 7. The smart tableaccording to claim 1, wherein the RFID reader polls at a predeterminedperiod.
 8. The smart table according to claim 1, wherein the processoris configured to, upon recognizing the RFID tag, perform control to makeat least some of the plurality of working coils enter a wireless powertransmission mode.
 9. The smart table according to claim 1, furthercomprising a display, wherein the processor controls the display todisplay a message indicating that cooking is currently underway when atleast one of the plurality of working coils operates as an inductionheating coil.
 10. The smart table according to claim 1, furthercomprising a display, wherein the processor controls the display todisplay a message indicating movement of the home appliance upondetecting movement of the home appliance.
 11. The smart table accordingto claim 1, wherein the processor is configured to, upon detectingmovement of the home appliance, change a working coil driven as thewireless power transmission coil according to movement of the homeappliance.
 12. The smart table according to claim 1, wherein theprocessor is configured to, upon detecting decoupling of the homeappliance, perform control to turn power supply of the one or more ofthe plurality of working coils off.
 13. The smart table according toclaim 1, wherein the plurality of working coils are positioned atpredetermined regions below the plate regardless of a purpose ofinduction heating or wireless power transmission.
 14. The smart tableaccording to claim 1, wherein the processor is further configured todrive one or more of the plurality of working coils as the powertransmission coils for wireless power transmission and as the workingcoils for induction heating.
 15. The smart table according to claim 1,wherein the processor is further configured to drive, as the workingcoils for induction heating, one or more of the plurality of workingcoils that have been driven as the power transmission coils for wirelesspower transmission.
 16. The smart table according to claim 1, whereinthe processor is further configured to drive, as the power transmissioncoils for wireless power transmission, one or more of the plurality ofworking coils that have been driven as the working coils for inductionheating.
 17. The smart table according to claim 1, wherein the spacer orthe insulator has one surface facing the antenna of the RFID reader andthe other surface facing the at least one of the plurality of workingcoils.
 18. The smart table according to claim 1, wherein the spacer orthe insulator defines a gap between the antenna of the RFID reader andthe at least one of the plurality of working coils.
 19. The smart tableaccording to claim 5, wherein the antenna of the RFID reader is disposedvertically above the at least one of the plurality of working coils.